Final answer:
A smart bulb is a connected light bulb equipped with a WiFi receiver and a switching device for remote control and automation integration.
Step-by-step explanation:
A smart bulb is a light bulb that contains a WiFi receiver and a switching device in the actual bulb, allowing it to connect to a network and be controlled remotely.
Unlike standard incandescent bulbs that simply light up when power is applied, smart bulbs offer features like dimming, color change, and integration with home automation systems. They work with a lightbulb socket and can be adjusted through a mobile app or voice commands, thanks to their built-in WiFi receivers.